101121193 has 4 divisors (see below), whose sum is σ = 101253460. Its totient is φ = 100988928.

The previous prime is 101121161. The next prime is 101121203. The reversal of 101121193 is 391121101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65157184 + 35964009 = 8072^2 + 5997^2 .

It is a cyclic number.

It is not a de Polignac number, because 101121193 - 2⁵ = 101121161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101121193.

It is not an unprimeable number, because it can be changed into a prime (101121793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64980 + ... + 66517.

It is an arithmetic number, because the mean of its divisors is an integer number (25313365).

Almost surely, 2^101121193 is an apocalyptic number.

It is an amenable number.

101121193 is a deficient number, since it is larger than the sum of its proper divisors (132267).

101121193 is an equidigital number, since it uses as much as digits as its factorization.

101121193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132266.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 101121193 is about 10055.9033905463. The cubic root of 101121193 is about 465.8871459480.

Adding to 101121193 its reverse (391121101), we get a palindrome (492242294).

The spelling of 101121193 in words is "one hundred one million, one hundred twenty-one thousand, one hundred ninety-three".